ModuleHelperException module utils - improved exception initialization (

#4755) (#4786)

* ModuleHelperException module utils - improved exception initialization

* added changelog fragment

* Update plugins/module_utils/mh/exceptions.py

Co-authored-by: Felix Fontein <felix@fontein.de>

Co-authored-by: Felix Fontein <felix@fontein.de>
(cherry picked from commit b87edda)

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>

changelogs/fragments/4755-mhexception-improvement.yml

@@ -0,0 +1,2 @@
+minor_changes:
+  - ModuleHelper module utils - improved ``ModuleHelperException``, using ``to_native()`` for the exception message (https://github.com/ansible-collections/community.general/pull/4755).

plugins/module_utils/mh/exceptions.py

@@ -6,17 +6,13 @@
 from __future__ import absolute_import, division, print_function
 __metaclass__ = type
 
+from ansible.module_utils.common.text.converters import to_native
 
-class ModuleHelperException(Exception):
-    @staticmethod
-    def _get_remove(key, kwargs):
-        if key in kwargs:
-            result = kwargs[key]
-            del kwargs[key]
-            return result
-        return None
 
-    def __init__(self, *args, **kwargs):
-        self.msg = self._get_remove('msg', kwargs) or "Module failed with exception: {0}".format(self)
-        self.update_output = self._get_remove('update_output', kwargs) or {}
+class ModuleHelperException(Exception):
+    def __init__(self, msg, update_output=None, *args, **kwargs):
+        self.msg = to_native(msg or "Module failed with exception: {0}".format(self))
+        if update_output is None:
+            update_output = {}
+        self.update_output = update_output
         super(ModuleHelperException, self).__init__(*args)